2027 Medicare Part B Premium

What the standard premium tells you

The standard premium is the starting amount for Part B coverage. It does not describe every Medicare cost. You may also have an annual deductible, coinsurance, a drug plan premium, supplemental coverage costs, or an income-related adjustment. Keep those categories separate when you prepare a monthly spending plan, because not all of them are withheld from the same payment.

The 2027 IRMAA brackets explain how income can increase Part B and Part D costs. For 2027, the income thresholds shown on this site are projected and the surcharge amounts remain not yet released. A standard premium estimate is therefore insufficient to calculate a confirmed total for a person who will owe IRMAA.

How much of your COLA goes to Part B

A Social Security COLA raises the gross benefit. A higher Medicare deduction can absorb part of that increase before the payment reaches your bank. The comparison tool starts with the gross COLA dollar increase and subtracts the change in the standard Part B premium. It shows the remaining change under those assumptions, rather than treating the COLA percentage as a guaranteed deposit increase.

Using the data currently available, the estimated monthly standard premium change is $6.60. That difference comes from a projected 2027 amount compared with an official 2026 amount, so the difference is itself an estimate. Enter the correct gross benefit in the Social Security COLA calculator to see how the comparison relates to your benefit.

Read your gross benefit and deductions separately

If Medicare is deducted from your Social Security payment, the bank deposit is a net amount. Using that deposit as the gross benefit understates the starting amount for a COLA estimate. Your benefit notice or online account should help you distinguish the gross benefit from Medicare, tax withholding, and other deductions. Match each figure to its label before entering it.

The mini tool compares standard Part B premiums only. It does not determine whether a hold-harmless provision applies, recalculate IRMAA, or account for every personal deduction. Some beneficiaries pay Medicare directly rather than through a benefit deduction. For them, the premium still affects household cash flow even though the Social Security deposit may not display the change.

The deductible is not a monthly premium

The annual deductible is a cost-sharing threshold, not an amount to subtract from every monthly benefit check. How much you actually pay also depends on covered services and any other coverage you have. The deductible estimate can help with a reserve for medical expenses, but it should not be added to each monthly premium payment as though both recur on the same schedule.

When comparing years, compare monthly premiums with monthly premiums and annual deductibles with annual deductibles. If you annualize a monthly premium for a budget, label that total clearly. The retirement savings calculator can include health costs within the spending amount you choose, but it does not predict medical use or insurance reimbursements.

Check which information has been confirmed

The CMS 2026 premium and deductible fact sheet supports the reference amounts. The 2027 standard premium and deductible here come from a Trustees projection, while the 2027 CMS fact sheet has not been verified in our current data. Visit the sources and update log to inspect those distinctions. Your Medicare and Social Security notices remain the appropriate documents for your personal payment.

Frequently asked questions

Sources

• ssa.gov — 2026 10 14.html
• ssa.gov — 2027.html
• cms.gov — 2026 medicare parts b premiums deductibles
• secure.ssa.gov — 0300601020

See every figure, status and verification date